Muslim Brotherhood-supporting college students clashed with police in at least three Egyptian cities Tuesday afternoon, Ahram Online reported.

Students at al-Azhar University in Cairo attempted to stage a march from the traditionally Sunni school to a mosque that was the site of a sit-in staged by Morsi supporters but were stopped by police who used tear gas and high-pressure hoses to disburse them, Ahram said the Middle East News Agency reported.

Some members of the crowd were seen throwing stones at officers. At Tanta University in Gharbiya, at least 15 students were injured during confrontations with authorities outside the school's medical campus. The university president requested security forces to bring the violence to an end, Ahram said.

A similar exchange took place at Assiut University in northern Egypt, the Egyptian news website said. The protests, conducted in the face of a new law requiring police be notified in advance, were to voice opposition to "security interference" in university affairs, Ahram Online said.

A witness told Ahram Online, Muslim Brotherhood supporters allegedly slit the throat of a taxi driver after he ran over a female protester Monday in Egypt's Nile Delta. The taxi driver had demanded demonstrators in Dagahliya move and allow him to drive through. When they refused, he allegedly ran over a female protester, Ahram Online reported.The mob then attacked the taxi driver and slit his throat, killing him, and then torched his car, the news website said.